US1360558A - Method of producing interiorly-cylindrical surfaces having an exact diameter - Google Patents

Method of producing interiorly-cylindrical surfaces having an exact diameter Download PDF

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Publication number
US1360558A
US1360558A US343120A US34312019A US1360558A US 1360558 A US1360558 A US 1360558A US 343120 A US343120 A US 343120A US 34312019 A US34312019 A US 34312019A US 1360558 A US1360558 A US 1360558A
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United States
Prior art keywords
hole
diameter
cylindrical surfaces
ball
producing
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Expired - Lifetime
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US343120A
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Mattsson Gunnar
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Individual
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Individual
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Publication date
Priority to GB29757/19A priority Critical patent/GB151183A/en
Application filed by Individual filed Critical Individual
Priority to US343120A priority patent/US1360558A/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/08—Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49703—Sealing

Definitions

  • This invention relates to a method of producing cylindrical holes of exact diameter in obj ectsmade of rigidmaterial, such as wheel blanks or othermachine parts which are to conform with other machine arts.
  • the invention may be carried out by hrst making an approximately accurate hole of slightly smaller diameter than the finished hole to be produced.- This may be accomplished in any suitable manner, as, for instance, by boring or turning in a lathe and broaching, after which the hole may be finished to accurate diameter by means of one or more spherical polished steel balls which may be driven by any suitable tool through the hole thus made, the diameter of the ball or balls being slightly, that is, up to 0.15 mm., larger than that of the hole.
  • the method is particularly adapted for use in the production of hub holes in gear wheel blanks and the like, in which the opcrating surfaces or elements are to be subsequently produced in an exact relation to the hub holes, the surrounding surfaces of which thus serve as guiding means.
  • the accuracy of the positioning of the operating surfaces will thus be dependent on the accuracy in the making of the hub holes, which is, therefore, of great importance, especially when manufacturing on a large scale, in which case the various parts of the thing produced should be interchangeable.
  • hub holes 1n for instance, bevel wheel blanks
  • the plane under side of the hub and the usually cupshaped lower part of the wheel blank may a millimeter, whereupon the hole is broached so that the diameter becomes as nearly that desired as possible.
  • the holes will necessarily have slightly different diameters.
  • the hole is subsequently treated by pressing through it one or more spherical polished steel balls the diameters of which are sli htly larger than that of the broached hole. IBy this means the diameter of the hole will be increased to exactly that desired, and will be made equal along its whole length, and, moreover, the surface will be smoothly polished.
  • the blanks are kept fastened to an accurately centered mandrel which, on account of the accurate forming of the hub holes, hereinbefore described, will exactly fit all wheel blanks having the same bore.
  • the ball should be slightly larger in diameter than the desired diameter of the finished hole, due to the fact that the hole contracts somewhat after being expanded by the ball or balls, and that the ball is (or' balls are) slightly compressed, when driven through the hole.
  • 1 designates a cut off portion of any machine part whatever in which is a hole 2.
  • the part 1 rests on a firm bed 3 in which is also a hole 4 the diameter of which is larger than that of the hole 2 of the blank.
  • the. surface of the hole will be polished on account of the pressure and the rubbing against the polished surface of the ball.
  • the diameter of said ball being slightly greater than that of the diameter of the finished hole.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Description

G. MATTSSON.
METHOD OF PRODUCING INTERIORLY CYLINDRICAL SURFACES HAVING AN EXACT DIAMETER.
APPLICATION HLED DEC. 5, I919.
1360 558. Patented Nov 30,1920.
INVENTOR By Attorneys,
' .3 a "m ammm n Wu 3M? GUNNAR MATTSSON, OF GOTTENBORG. SWEDEN.
METHOD OF PRODUCING INTERIORLY-CYLINDRICAL SURFACES HAVING AN EXACT DIAMETER.
Specification of Letters Patent.
Patented Nov. 30, 1920.
Application filed December 0, 1919. Serial No. 348,120.
teriorly-Cylindrical Surfaces Having Exact Diameters, of which the following is a specification.
This invention relates to a method of producing cylindrical holes of exact diameter in obj ectsmade of rigidmaterial, such as wheel blanks or othermachine parts which are to conform with other machine arts. The invention may be carried out by hrst making an approximately accurate hole of slightly smaller diameter than the finished hole to be produced.- This may be accomplished in any suitable manner, as, for instance, by boring or turning in a lathe and broaching, after which the hole may be finished to accurate diameter by means of one or more spherical polished steel balls which may be driven by any suitable tool through the hole thus made, the diameter of the ball or balls being slightly, that is, up to 0.15 mm., larger than that of the hole.
The method is particularly adapted for use in the production of hub holes in gear wheel blanks and the like, in which the opcrating surfaces or elements are to be subsequently produced in an exact relation to the hub holes, the surrounding surfaces of which thus serve as guiding means. The accuracy of the positioning of the operating surfaces will thus be dependent on the accuracy in the making of the hub holes, which is, therefore, of great importance, especially when manufacturing on a large scale, in which case the various parts of the thing produced should be interchangeable.
In the production of hub holes 1n, for instance, bevel wheel blanks, while the plane under side of the hub and the usually cupshaped lower part of the wheel blank may a millimeter, whereupon the hole is broached so that the diameter becomes as nearly that desired as possible. Since, however, in broaching a series of holes, one after another, the wearing of the broach is unavoidable, the holes will necessarily have slightly different diameters. Moreover, it is practically impossible, in broaching a hole, to make it absolutely cylindrical in shape, due to the fact that, through the inevitable bending of the broach, the diameter will, generally, be somewhat larger at the ends of the hole than at the middle thereof. In order to remedy this defect, the hole is subsequently treated by pressing through it one or more spherical polished steel balls the diameters of which are sli htly larger than that of the broached hole. IBy this means the diameter of the hole will be increased to exactly that desired, and will be made equal along its whole length, and, moreover, the surface will be smoothly polished. During the following turning of the conical surface and the top surface of the Wheel blank, the blanks are kept fastened to an accurately centered mandrel which, on account of the accurate forming of the hub holes, hereinbefore described, will exactly fit all wheel blanks having the same bore.
The ball, or one or more of them if a plurality are used, should be slightly larger in diameter than the desired diameter of the finished hole, due to the fact that the hole contracts somewhat after being expanded by the ball or balls, and that the ball is (or' balls are) slightly compressed, when driven through the hole.
Due to the fact that all sections through the center of the, ball are circles of equal diameter, any turning of the ball, during its passage through the hole being made, will not vary the diameter of said hole at any point.
In the drawing, a device for carrying out the last operation according to the invention is schematically shown.
In the figure, 1 designates a cut off portion of any machine part whatever in which is a hole 2. The part 1 rests on a firm bed 3 in which is also a hole 4 the diameter of which is larger than that of the hole 2 of the blank. Placed at one end of the hole 2 to be treated, preferably at the upper one, is a hardened and polished steel ball adapted to be driven, by a suitable tool 6, through the hole 2, which is thereby expanded to an exact and uniform diameter corresponding nearly to that of the ball 5. At the same time the. surface of the hole will be polished on account of the pressure and the rubbing against the polished surface of the ball.
I claim:
1. The method of producing a cylindrical hole of exact diameter in a machine element or other article of rigid material, which consists in first makin an a proximately accurate hole of slight y sma ler diameter by means of any appropriate tool or tools, and subsequently enlarging the same to the desired accurate size by forcing therethrough a spherical ball of relatively harder material than that of said article,
the diameter of said ball being slightly greater than that of the diameter of the finished hole.
2. The method of producing a cylindrical hole of exact diameter in a machine element or other article of rigid material, which consists in first making an approximately accurate hole of slightly smaller diameter by means of any a propriate tool or tools, and subsequently en arg1n the same to the de sired accurate size by orcing therethrough a succession of spherical balls of relath ely harder material than that of said article, the diameter of said balls bein slightly greater than that of the diameter 0 the finished hole.
GUNNAR MAT'JISSON.
US343120A 1919-11-28 1919-12-06 Method of producing interiorly-cylindrical surfaces having an exact diameter Expired - Lifetime US1360558A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB29757/19A GB151183A (en) 1919-11-28 1919-11-28 Improvements in or relating to a process of producing cylindrical holes having an exact diameter
US343120A US1360558A (en) 1919-11-28 1919-12-06 Method of producing interiorly-cylindrical surfaces having an exact diameter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB29757/19A GB151183A (en) 1919-11-28 1919-11-28 Improvements in or relating to a process of producing cylindrical holes having an exact diameter
US343120A US1360558A (en) 1919-11-28 1919-12-06 Method of producing interiorly-cylindrical surfaces having an exact diameter

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US1360558A true US1360558A (en) 1920-11-30

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GB (1) GB151183A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799340A (en) * 1952-02-19 1957-07-16 Masemo Corp Hole punching device and method
US2906004A (en) * 1956-08-09 1959-09-29 Scott & Williams Inc Broach
US2994186A (en) * 1958-09-11 1961-08-01 Diamond Chain Company Inc Method of making link plates for chain
US3181335A (en) * 1960-12-16 1965-05-04 Svenska Metallverken Ab Extrusion apparatus
US3196653A (en) * 1962-03-07 1965-07-27 Gazan George Anthony Ball sizing machine
US4030668A (en) * 1976-06-17 1977-06-21 The Bendix Corporation Electromagnetically operated fuel injection valve
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
EP0040520A2 (en) * 1980-05-20 1981-11-25 ASSOCIATED ENGINEERING ITALY S.p.A. Shaping pistons
US20050000077A1 (en) * 2003-01-21 2005-01-06 Dvoskin Lev Mikhailovich System and method for ballizing and measuring a workpiece bore hole
US20060207306A1 (en) * 2003-05-05 2006-09-21 Ab Skf Method for treating the surface of a machine element
CN102389907A (en) * 2011-11-18 2012-03-28 许晓华 Hole extruding device for steel balls

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226809A (en) * 1962-08-17 1966-01-04 Tech Integrale Sa Method of manufacturing worm-and-nut devices
DE3116765C1 (en) * 1981-04-28 1990-10-04 Rohde & Schwarz GmbH & Co KG, 8000 München Tool for making countersunk holes or pass holes in a sheet on a punching machine
US6761917B1 (en) * 1993-07-19 2004-07-13 Anton Steinecker Maschinenfabrik Gmbh Method and device for controlling the wort flow from a lauter tun
DE102008025039B3 (en) * 2008-05-24 2009-07-23 Ab Skf Method for producing a linear bearing housing and linear bearing housing

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799340A (en) * 1952-02-19 1957-07-16 Masemo Corp Hole punching device and method
US2906004A (en) * 1956-08-09 1959-09-29 Scott & Williams Inc Broach
US2994186A (en) * 1958-09-11 1961-08-01 Diamond Chain Company Inc Method of making link plates for chain
US3181335A (en) * 1960-12-16 1965-05-04 Svenska Metallverken Ab Extrusion apparatus
US3196653A (en) * 1962-03-07 1965-07-27 Gazan George Anthony Ball sizing machine
US4030668A (en) * 1976-06-17 1977-06-21 The Bendix Corporation Electromagnetically operated fuel injection valve
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
EP0040520A3 (en) * 1980-05-20 1983-09-21 Associated Engineering Italy S.P.A. Shaping pistons
EP0040520A2 (en) * 1980-05-20 1981-11-25 ASSOCIATED ENGINEERING ITALY S.p.A. Shaping pistons
US4515003A (en) * 1980-05-20 1985-05-07 Associated Engineering Italy S.P.A. Piston shaping
US20050000077A1 (en) * 2003-01-21 2005-01-06 Dvoskin Lev Mikhailovich System and method for ballizing and measuring a workpiece bore hole
US7210209B2 (en) * 2003-01-21 2007-05-01 Seagate Technology Llc System and method for ballizing and measuring a workpiece bore hole
US7568370B2 (en) 2003-01-21 2009-08-04 Seagate Technology Llc System and method for ballizing and measuring a workpiece bore hole
US7788961B2 (en) 2003-01-21 2010-09-07 Seagate Technology, Llc System and method for ballizing and measuring a workpiece bore hole
US20060207306A1 (en) * 2003-05-05 2006-09-21 Ab Skf Method for treating the surface of a machine element
US7389666B2 (en) * 2003-05-05 2008-06-24 Ab Skf Method for treating the surface of a machine element
CN102389907A (en) * 2011-11-18 2012-03-28 许晓华 Hole extruding device for steel balls

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Publication number Publication date
GB151183A (en) 1920-09-23

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